Overview

overview

10

Static

static

10

SentinelStealer.exe

windows10-2004-x64

10

SentinelStealer.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/06/2026, 19:01

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General

  • Target
    SentinelStealer.exe
  • Size 754KB
  • Sample260625-xn996aev91
  • SHA256 444e528d261c51fb26ff6092807f39f7e269c5d1214dc5970a9c15d314267a6a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarecollectioncredential_accesssentinel_stealerpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Family: SentinelStealer

    SentinelStealer is an information stealer written in C#.

    stealersentinel_stealer
  • Detects SentinelStealer in memory 1 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

    spywarestealer
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

    credential_accessstealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SentinelStealer.exe
    "C:\Users\Admin\AppData\Local\Temp\SentinelStealer.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:4684
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4228
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:5720
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4896

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        prep_Activatable Class_Hermes_perf.cache
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/4684-12-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-9-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-4-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-3-0x000002B698710000-0x000002B698722000-memory.dmp
        Download

        memory/4684-6-0x000002B698800000-0x000002B698850000-memory.dmp
        Download

        memory/4684-5-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-7-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-13-0x000002B6B1210000-0x000002B6B123D000-memory.dmp
        Download

        memory/4684-1-0x00007FFF6D03F000-0x00007FFF6D040000-memory.dmp
        Download

        memory/4684-10-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-2-0x000002B698740000-0x000002B698792000-memory.dmp
        Download

        memory/4684-11-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-8-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-14-0x00007FFF6CEB0000-0x00007FFF6D854000-memory.dmp
        Download

        memory/4684-0-0x000002B696910000-0x000002B6969D0000-memory.dmp
        Download

        memory/4896-192-0x00000213E6830000-0x00000213E6ACE000-memory.dmp
        Download

        memory/4896-193-0x00000213E6E40000-0x00000213E6F14000-memory.dmp
        Download

        memory/5720-36-0x00000240037B0000-0x00000240037D0000-memory.dmp
        Download

        memory/5720-75-0x0000024014260000-0x0000024014280000-memory.dmp
        Download

        memory/5720-29-0x0000024032AD0000-0x0000024032BD0000-memory.dmp
        Download

        memory/5720-35-0x0000024003970000-0x0000024003A70000-memory.dmp
        Download

        memory/5720-34-0x0000024003570000-0x0000024003590000-memory.dmp
        Download

        memory/5720-191-0x0000024017650000-0x00000240178EE000-memory.dmp
        Download